Harrow.



no. 704357. Patented July l5. I902. E. F. MAY.

NARROW, I A ucilmon' filed Feb. 1. 1901.

(No Model.)

- in; I guvewtot UNITED STATES PATENT OFFICE.

EDGAR/F. MAY, OF l/VAUKOM'IS, OKLAHOMA TERRITORY.

V HARROW.

SPECIFICATION forming .part of Letters Patent No. 704,897, dated July 15, 1902. Application filed I ehruary 'l, 19(l1. Serial No. 46,422. (N 0 model.)

komis, in the county of Garfield and Territory of Oklahoma, have invented new and useful Improvements in a Combined Roller,

Cutter, and Harrow, of which the following is a specification.

This invention relates to new and useful improvements in a combined roller, cutter,

and harro'w; and its primarygobject is to pro vide a device of light, simple, and durableconstruction which is easily operated and is effective in use.

A further object is toso construct the device as to render the same especially adapted for use in dry weather.

Another object is to employ means whereby the soil is slightly turned while being rolled, out, and harrowed when the device is used.

With these and other objects in view the invention consists in the novel construction and combination of parts hereinafter more fully described and claimed, and illustrated in the accompanying drawings, showing the form of my invention, and in which Figure 1 is a plan view of my improved combined roller, cutter, and harrow. Fig. 2 is an elevation of the same.

1 is a rectangular frame, within which are mounted two rollers 2 and 3, respectively, having continuous rolling-surfaces and an ranged one in rear or the other. The rear roller 2is provided with parallel spiral radial blades 4, extending from end to end thereof at regular intervals, and alternating therewith'between the blades are spiral rows of radial pins or studs 5. .lhefront roller 3 is provided at regular intervals with longitudinally extending parallel straight radial contact.

blades 6, and located between these blades are rows of radial pins or studs 7.

As the, first combined roller, cutter, and harrow travels over the soil to be pulverized the roller is supported on the surface of the ground, while the radial blades 6 out thereinto and break all clods with which they come in The radial pins or studs 7 at the vsame time are forcedinto the earth and throw the same upward. The second'or rear combined roller, cutter, and harrow operates in a somewhat similar manner to continue the work of the first combined roller,cutter, and harrow by following in the wake thereof. The spiral radial blades 4, however, serve not only toout the soil, but also to partly turn the same in addition thereto.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

A harrow comprising a carrying-frame, a front roller journaled in the frame and hav-- ing a continuous rolling-surface, straight radial cutting-blades extending the length of the rollerwith spaces between them, straight rows of radial teeth disposed at intervals the length of the roller and between the cutting- 

